22918249460 has 24 divisors (see below), whose sum is σ = 48140203776. Its totient is φ = 9165036960.

The previous prime is 22918249447. The next prime is 22918249477. The reversal of 22918249460 is 6494281922.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57152 + ... + 221591.

It is an arithmetic number, because the mean of its divisors is an integer number (2005841824).

Almost surely, 2^22918249460 is an apocalyptic number.

22918249460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22918249460 is an abundant number, since it is smaller than the sum of its proper divisors (25221954316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22918249460 is a wasteful number, since it uses less digits than its factorization.

22918249460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282863 (or 282861 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 22918249460 in words is "twenty-two billion, nine hundred eighteen million, two hundred forty-nine thousand, four hundred sixty".